The product variety, performance and appearance of hydraulic machine manufacturing enterprises in our country are very similar. Backbone enterprises can be used for the production of multi process forming process of the main process of a series of stand-alone products, but the lack of specialized, refined, special products and complete sets of products. Before the delivery of hydraulic products, but because of the lack of process validation stage, often make the enterprise into a "product does not guarantee the factory, after delivery upset" embarrassing situation. General type, small and medium-sized four column hydraulic machine products manufacturing, with 100 people below the small and medium-sized private enterprises mainly in the low-end market has obvious product price advantage.